BMW's new electric i3, Porsche's fuel-efficient Cayman, a new RAV4 and Chevy's new Spark were all at the L.A. International Auto Show as WSJ's Joseph B. White reports. wsj.com/worldstream

This transcript has been automatically generated and may not be 100% accurate.

... I ... Tuesday's hear of the deal the Audi three concepts unveils here ... in the Hollywood Hills ... shown in the back and ... yet that is designed to be driven by God's says his party's ninety percent ... of what the production car will be that the launch ... of the electorate by three next year ... the batteries in the ... war ... the body and chassis is carbon fiber body panels are plastic aluminum to hold the engine in place ... this is what the of the abuse ... of but up against Tesla ... Mr. and the other premium electric cars this is the ... forthcoming Toyota Rav four one of about a dozen models more than a dozen models the Toyota is to be revamping ... of the next year or so for the U S market ... to get some of their momentum back ... on this vehicle has a much needed update such as the six speed transmission ... replacing it an outdated four ... the standard four cylinder engine is and have ... been inspected more than a hundred seventy words are that's what you need to be competitive in this segment ... the odd six order that they use offer ... no longer offered another sign of how fuel economy ... it's really driving product decisions in this market we are looking at the new redesigned and just revealed ... Porsche Cayman ... this is sort of a little brother to the Porsche nine eleven ... but Dom this reflects proportions going ... this car's engine sits on the edges a little smaller than the outgoing model ... what's more powerful tickets fifteen percent better fuel economy ... of about thirty two with six cylinder engine in an ... out with three point four liter three point five horsepower ... but gets thirty mpg highway when nobody buys of course are ... necessarily for fuel economy ... even people who drive fast ... don't really want to waste gas we are looking under the hood of the Chevy Spark BB ... this colorway model with GM is what ... is that the show ... showing the interior plumbing ... there's the battery pack right there ... Chevy Spark Eebee's Pollyanna be offered mainly in California ... price to twenty thousand dollar range ... of driving range ... to be announced that Chevy says ... they're hoping ... that it will be the best in its class ... much faster than the real the ... control combustion spark ... his ... electric motors have high torque right from the get go